The Q2A Addons page already displays a list of available plugins.
Anybody can update that list or add new plugins by pushing commits to q2a.github.io .
Trying to branch it into different sources/different places with lists of plugins will only make things more confusing. Best to have it all in one place.
Now for the "know what works and what does not" part, we could create a badge to display before or in front of a plugin's name, something like this.
Could be something to consider.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.